EP4513648A2 - Batteriepack mit erhöhter lebensdauer einer batteriezelle und vorrichtung damit - Google Patents

Batteriepack mit erhöhter lebensdauer einer batteriezelle und vorrichtung damit Download PDF

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Publication number
EP4513648A2
EP4513648A2 EP25150889.1A EP25150889A EP4513648A2 EP 4513648 A2 EP4513648 A2 EP 4513648A2 EP 25150889 A EP25150889 A EP 25150889A EP 4513648 A2 EP4513648 A2 EP 4513648A2
Authority
EP
European Patent Office
Prior art keywords
battery
support plate
plate
pack
battery cell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP25150889.1A
Other languages
English (en)
French (fr)
Other versions
EP4513648A3 (de
Inventor
Jung Hoon Lee
Jae Hun Yang
Sang Yoon Jeong
Jong Soo Ha
Se Ho Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Energy Solution Ltd
Original Assignee
LG Energy Solution Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020200121927A external-priority patent/KR102922440B1/ko
Application filed by LG Energy Solution Ltd filed Critical LG Energy Solution Ltd
Publication of EP4513648A2 publication Critical patent/EP4513648A2/de
Publication of EP4513648A3 publication Critical patent/EP4513648A3/de
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/222—Inorganic material
    • H01M50/224—Metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/293—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a battery pack and a device including the same, and more particularly to a battery pack with increased lifespan of a battery cell configured to have a structure in which pressure applied to the battery cell is maintained at an appropriate level, whereby lifespan of the battery cell is extended, and the battery cell is in surface contact with a heat sink, whereby rapid heat dissipation is achieved, and a device including the same.
  • the secondary batteries which are being capable of being charged and discharged, are intimately used in daily life.
  • the secondary batteries are used in mobile devices, electric vehicles, and hybrid electric vehicles.
  • a battery cell swells during repeated charging and discharging thereof, whereby the overall volume of the battery cell is increased.
  • electrical contact between an electrode and an active material must be improved. To this end, it is necessary to constantly apply a predetermined level of pressing force to the battery cell.
  • FIG. 1 is a perspective view showing the structure of a conventional battery module.
  • the conventional battery module includes a plurality of single cells 10 disposed perpendicular to a heat sink 20, a case 30 configured to wrap the plurality of single cells 10 in order to protect the plurality of single cells, pressing plates 40 located at opposite sides of the plurality of single cells 10 vertically disposed, and pressure adjustment members 50 located between the pressing plates 40 and the case 30.
  • a second busbar assembly (320) may be located between the lower support plate (220) and the lower cover plate (620).
  • FIG. 2 is a perspective view of a battery pack according to a preferred embodiment of the present invention
  • FIG. 3 is an exploded perspective view of the battery pack shown in FIG. 2
  • FIG. 4 is a sectional view taken along line A-A' of FIG. 2 .
  • the battery pack 2000 includes a plurality of horizontally stacked battery modules 1000, a pressing plate 2100 located at the upper surface and the lower surface of the plurality of stacked battery modules 1000, an elastic member 2200, a pack case 2300, a plurality of fastening members 2400 configured to fix the battery modules 1000, and a distance retention portion 2500.
  • the pressing plate 2100 includes an upper pressing plate 2110 located on the upper surface of the stacked battery modules 1000 in tight contact therewith, a lower pressing plate 2120 located on the lower surface of the stacked battery modules 1000 in tight contact therewith, and a plurality of side plates 2130 located at opposite side surfaces of the battery modules 1000 in a state of being spaced apart therefrom by a predetermined distance.
  • the elastic member 2200 includes a first elastic member 2210, a second elastic member 2220, and a third elastic member 2230.
  • the first elastic member 2210 and the second elastic member 2220 provide tensile force between the upper pressing plate 2110 and the lower pressing plate 2120, whereas the third elastic member 2230 is located between the upper pressing plate 2110 and an upper pack cover 2310 to provide pressing force.
  • the third elastic member 2230 it is preferable for the third elastic member 2230 to be provided in plural in a state of being spaced apart from each other by a predetermined distance.
  • the third elastic member inhibits bending of the pressing plate that may be caused by a swelling deviation between the battery cells, whereby it is possible to minimize a deviation in pressing force.
  • the pack case 2300 includes an upper pack cover 2310 located at the upper surface of the upper pressing plate 2110, a lower pack cover 2320 located at the lower surface of the lower pressing plate 2120, and side pack covers 2330 located parallel to the side plates 2130.
  • the fastening members 2400 are configured to fix the plurality of battery modules 1000, which are stacked in a vertical direction, using predetermined force.
  • each of the fastening members may be a bolt having a screw thread formed at one end thereof, and a nut may be fastened to the other side of the fastening member in order to fix the battery modules 1000.
  • the nuts are somewhat loosely fastened to the fastening members in consideration of expansion of the battery modules upon swelling.
  • the distance retention portion 2500 may be further provided between the upper pressing plate 2110 and the upper pack cover 2310 at the middle thereof in order to supplement tensile force by the first elastic member 2210 and pressing force by the third elastic member 2230.
  • the distance retention portion may be a quadrangular pillar made of metal.
  • FIG. 5 is an exploded perspective view of a battery module according to a preferred embodiment of the present invention.
  • the battery module 1000 includes a heat sink 100, a support plate 200, a busbar assembly 300, a support frame 400, battery cells 500, and a cover plate 600.
  • the heat sink 100 is a flat plate that is provided with a flow channel defined therein and has a predetermined area.
  • a plurality of protuberances 110 is formed on the upper surface and the lower surface of the heat sink 100 so as to protrude therefrom in a state of being spaced apart from each other by a predetermined distance.
  • the protuberances 110 will be described below in detail.
  • the support plate 200 includes an upper support plate 210 and a lower support plate 220 located at opposite surfaces of the heat sink 100, more specifically the upper surface of the heat sink 100 and the lower surface of the heat sink 100, respectively.
  • the busbar assembly 300 configured to electrically connect the battery cells 500 to each other includes a first busbar assembly 310 and a second busbar assembly 320.
  • the first busbar assembly 310 is located at the upper surface of the upper support plate 210, and the second busbar assembly 320 is disposed at the lower surface of the lower support plate 220.
  • the second busbar assemblies 320 are symmetrical with the first busbar assemblies 310, and therefore an additional description thereof will be omitted.
  • the support frame 400 includes first support frames 410 and second support frames 420.
  • the first support frames 410 are located between the upper support plate 210 and an upper cover plate 610
  • the second support frames 420 are located between the lower support plate 220 and the lower cover plate 620.
  • the first support frames and the second support frames will be described below in more detail.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)
  • Connection Of Batteries Or Terminals (AREA)
EP25150889.1A 2020-09-22 2021-08-23 Batteriepack mit erhöhter lebensdauer einer batteriezelle und vorrichtung damit Pending EP4513648A3 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020200121927A KR102922440B1 (ko) 2020-09-22 전지셀의 수명이 향상된 전지 팩 및 이를 포함하는 디바이스
PCT/KR2021/011201 WO2022065700A1 (ko) 2020-09-22 2021-08-23 전지셀의 수명이 향상된 전지 팩 및 이를 포함하는 디바이스
EP21872730.3A EP4109646A4 (de) 2020-09-22 2021-08-23 Batteriepack mit batteriezelle mit erhöhter lebensdauer und vorrichtung damit

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP21872730.3A Division EP4109646A4 (de) 2020-09-22 2021-08-23 Batteriepack mit batteriezelle mit erhöhter lebensdauer und vorrichtung damit

Publications (2)

Publication Number Publication Date
EP4513648A2 true EP4513648A2 (de) 2025-02-26
EP4513648A3 EP4513648A3 (de) 2025-05-21

Family

ID=80846704

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21872730.3A Pending EP4109646A4 (de) 2020-09-22 2021-08-23 Batteriepack mit batteriezelle mit erhöhter lebensdauer und vorrichtung damit
EP25150889.1A Pending EP4513648A3 (de) 2020-09-22 2021-08-23 Batteriepack mit erhöhter lebensdauer einer batteriezelle und vorrichtung damit

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP21872730.3A Pending EP4109646A4 (de) 2020-09-22 2021-08-23 Batteriepack mit batteriezelle mit erhöhter lebensdauer und vorrichtung damit

Country Status (5)

Country Link
US (1) US20230155226A1 (de)
EP (2) EP4109646A4 (de)
JP (1) JP7483302B2 (de)
CN (1) CN115336092B (de)
WO (1) WO2022065700A1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220065601A (ko) 2020-11-13 2022-05-20 주식회사 엘지에너지솔루션 스웰링 제어가 가능한 구조를 갖는 배터리 팩 및 이를 포함하는 자동차
CN118575338A (zh) * 2022-10-27 2024-08-30 宁德时代新能源科技股份有限公司 电池及用电装置

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KR20200121927A (ko) 2018-02-19 2020-10-27 안드레 아우구스토 세발로스 멜로 비행기구들을 보강하기 위한 시스템 및 방법

Also Published As

Publication number Publication date
WO2022065700A1 (ko) 2022-03-31
EP4109646A1 (de) 2022-12-28
JP7483302B2 (ja) 2024-05-15
EP4513648A3 (de) 2025-05-21
KR20220039158A (ko) 2022-03-29
JP2023525237A (ja) 2023-06-15
US20230155226A1 (en) 2023-05-18
CN115336092A (zh) 2022-11-11
EP4109646A4 (de) 2024-07-24
CN115336092B (zh) 2024-07-05

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